TVS Diodes Surface Mount > 600W > SZ1SMB Series SZ1SMB Series Description The SZ1SMB series is designed to protect voltage sensitive components from high voltage, high energy transients. They have excellent clamping capability, high surge capability, and fast response time. The SZ1SMB series is supplied in the Littelfuse exclusive, cost-effective, highly reliable package and is ideally suited for use in communication systems, automotive, numerical controls, process controls, medical equipment, business machines, power supplies and many other industrial/consumer applications. Features • Working Peak Reverse Voltage Range − 5.0 V to 170 V for Maximum Ratings and Thermal Characteristics unidirectional, and 10 V to 75 V for bidirectional • Standard Avalanche Breakdown Voltage Range − Parameter Symbol Value Unit 6.7 V to 199 V for uni-directional, 11.7 V to 91.7 V for bi-directional Peak Power Dissipation (Note 1) @ T = L P 600 W 25°C, Pulse Width = 1 ms PK • Peak Power − 600 W @ 1.0 ms DC Power Dissipation @ TL = 75°C • ESD Rating of Class 3 (> 16 kV) per Human Body Model PD 3.0 W Measured Zero Lead Length (Note 2) • Maximum Clamp Voltage @ Peak Pulse Current Derate Above 75°C 40 mW/°C R Thermal Resistance from Junction−to− ƟJL 25 °C/W • Low Leakage < 5.0 µA Above 10 V Lead • Intended for UL 497B Type Protection DC Power Dissipation (Note 3) @ TA = P 0.55 W • Response Time is Typically < 1.0 ns 25°C Derate Above 25°C D 4.4 mW/°C • Pb-free means 2nd level interconnect is Pb-free and the Thermal Resistance from Junction–to– R 226 °C/W terminal finish material is tin(Sn) Ambient ƟJL (IPC/JEDEC J-STD-609A.01) • SZ Prefix for Automotive and Other Applications Requiring Forward Surge Current (Note 4) @ TA I 100 A = 25°C FSM Unique Site and Control Change Requirements; AEC−Q101 Qualified and PPAP Capable Operating and Storage Temperature -65 to T T °C Range J, stg +150 Additional Information Stresses exceeding those listed in the Maximum Ratings table may damage the componant. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. 10/1000 µs, non−repetitive. 2. 1” square copper pad, FR−4 board. 3. FR−4 board, using Littelfuse minimum recommended footprint, as shown in 403A-03 case outline dimensions spec. Datasheet Resources Samples 4. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum - For Unidirectional only. © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/30/18

TVS Diodes Surface Mount > 600W > SZ1SMB Series Functional Diagram I-V Curve Characteristics (T = 25°C unless otherwise noted, V = 3.5 V Max. @ I (Note 5) = 30 A) (For Unidirectional) A F F Symbol Parameter I I Maximum Reverse Peak Pulse Current PP V Clamping Voltage @ I C PP V Working Peak Reverse Voltage RWM V I Maximum Reverse Leakage Current @ V R RWM V Breakdown Voltage @ I BR T I On-State Current T I Maximum Temperature Coefficient of V F BR Uni Directional TVS V Forward Voltage @ I F F 5. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, non−repetitive duty cycle. I-V Curve Characteristics (T = 25°C unless otherwise noted) – For Bidirectional A Symbol Parameter IPP I Maximum Reverse Peak Pulse Current PP V Clamping Voltage @ I C PP VC VBR VRWM IIRT VRWM Working Peak Reverse Voltage IR VRWM VBR VC IR Maximum Reverse Leakage Current @ VRWM IT V Breakdown Voltage @ I BR T I On-State Current T IPP I Maximum Temperature Coefficient of V F BR V Forward Voltage @ I F F VF Forward Voltage @ I F © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/30/18

TVS Diodes Surface Mount > 600W > SZ1SMB Series Electrical Characteristics - For Unidirectional V @ I V I @ Breakdown Voltage C PP RWM R (Note 8) C Typ. Device* Device (Note 6) V Marking RWM V @ I (V) (Note 7) @ I V I (Note 9) BR T T C PP Volts µA MIN NOM MAX mA Volts Amps pF SZ1SMB5.0AT3G KE 5.0 800 6.40 6.7 7.0 10 9.2 65.2 2700 SZ1SMB6.0AT3G KG 6.0 800 6.67 7.02 7.37 10 10.3 58.3 2300 SZ1SMB6.5AT3G KK 6.5 500 7.22 7.6 7.98 10 11.2 53.6 2140 SZ1SMB7.0AT3G KM 7.0 500 7.78 8.19 8.6 10 12.0 50.0 2005 SZ1SMB7.5AT3G KP 7.5 100 8.33 8.77 9.21 1.0 12.9 46.5 1890 SZ1SMB8.0AT3G KR 8.0 50 8.89 9.36 9.83 1.0 13.6 44.1 1780 SZ1SMB8.5AT3G KT 8.5 10 9.44 9.92 10.4 1.0 14.4 41.7 1690 SZ1SMB9.0AT3G KV 9.0 5.0 10.0 10.55 11.1 1.0 15.4 39.0 1605 SZ1SMB10AT3G KX 10 5.0 11.1 11.7 12.3 1.0 17.0 35.3 1460 SZ1SMB11AT3G KZ 11 5.0 12.2 12.85 13.5 1.0 18.2 33.0 1345 SZ1SMB12AT3G LE 12 5.0 13.3 14 14.7 1.0 19.9 30.2 1245 SZ1SMB13AT3G LG 13 5.0 14.4 15.15 15.9 1.0 21.5 27.9 1160 SZ1SMB14AT3G LK 14 5.0 15.6 16.4 17.2 1.0 23.2 25.8 1085 SZ1SMB15AT3G LM 15 5.0 16.7 17.6 18.5 1.0 24.4 24.0 1020 SZ1SMB16AT3G LP 16 5.0 17.8 18.75 19.7 1.0 26.0 23.1 965 SZ1SMB17AT3G LR 17 5.0 18.9 19.9 20.9 1.0 27.6 21.7 915 SZ1SMB18AT3G LT 18 5.0 20.0 21.05 22.1 1.0 29.2 20.5 870 SZ1SMB20AT3G LV 20 5.0 22.2 23.35 24.5 1.0 32.4 18.5 790 SZ1SMB22AT3G LX 22 5.0 24.4 25.65 26.9 1.0 35.5 16.9 730 SZ1SMB24AT3G LZ 24 5.0 26.7 28.1 29.5 1.0 38.9 15.4 675 SZ1SMB26AT3G ME 26 5.0 28.9 30.4 31.9 1.0 42.1 14.2 630 SZ1SMB28AT3G MG 28 5.0 31.1 32.75 34.4 1.0 45.4 13.2 590 SZ1SMB30AT3G MK 30 5.0 33.3 35.05 36.8 1.0 48.4 12.4 555 SZ1SMB33AT3G MM 33 5.0 36.7 38.65 40.6 1.0 53.3 11.3 510 SZ1SMB36AT3G MP 36 5.0 40.0 42.1 44.2 1.0 58.1 10.3 470 SZ1SMB40AT3G MR 40 5.0 44.4 46.75 49.1 1.0 64.5 9.3 430 SZ1SMB43AT3G MT 43 5.0 47.8 50.3 52.8 1.0 69.4 8.6 400 SZ1SMB45AT3G MV 45 5.0 50.0 52.65 55.3 1.0 72.7 8.3 385 SZ1SMB48AT3G MX 48 5.0 53.3 56.1 58.9 1.0 77.4 7.7 365 SZ1SMB51AT3G MZ 51 5.0 56.7 59.7 62.7 1.0 82.4 7.3 345 SZ1SMB54AT3G NE 54 5.0 60.0 63.15 66.3 1.0 87.1 6.9 330 SZ1SMB58AT3G NG 58 5.0 64.4 67.8 71.2 1.0 93.6 6.4 310 SZ1SMB60AT3G NK 60 5.0 66.7 70.2 73.7 1.0 96.8 6.2 300 SZ1SMB64AT3G NM 64 5.0 71.1 74.85 78.6 1.0 103 5.8 280 SZ1SMB70AT3G NP 70 5.0 77.8 81.9 86 1.0 113 5.3 260 SZ1SMB75AT3G NR 75 5.0 83.3 87.7 92.1 1.0 121 4.9 245 © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/30/18

TVS Diodes Surface Mount > 600W > SZ1SMB Series Electrical Characteristics - For Unidirectional - Continued V @ I Breakdown Voltage C PP (Note 8) V I @ C Typ. RWM R V @ I (V) (Note 7) @ I V I (Note 9) Device* Device (Note 6) V BR T T C PP Marking RWM Volts µA MIN NOM MAX mA Volts Amps pF SZ1SMB85AT3G NV 85 55.0 94.4 99.2 104 1.0 137 4.4 220 SZ1SMB90AT3G NX 90 5.0 100 105.5 111 1.0 146 4.1 210 SZ1SMB100AT3G NZ 100 5.0 111 117 123 1.0 162 3.7 190 SZ1SMB110AT3G PE 110 5.0 122 128.5 135 1.0 177 3.4 175 SZ1SMB120AT3G PG 120 5.0 133 140 147 1.0 193 3.1 160 SZ1SMB130AT3G PK 130 5.0 144 151.5 159 1.0 209 2.9 150 SZ1SMB150AT3G PM 150 5.0 167 176 185 1.0 243 2.5 135 SZ1SMB160AT3G PP 160 5.0 178 187.5 197 1.0 259 2.3 125 SZ1SMB170AT3G PR 170 5.0 189 199 209 1.0 275 2.2 120 6. A transient suppressor is normally selected according to the working peak reverse voltage (V ), which should be equal to or greater than the DC or continuous peak RWM operating voltage level. 7. V measured at pulse test current I at an ambient temperature of 25°C. BR T 8. Surge current waveform per Figure 1 and derate per Figure 3 of the General Data − 600 W at the beginning of this group. 9. Bias Voltage = 0 V, F = 1 MHz, T = 25°C J © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/30/18

TVS Diodes Surface Mount > 600W > SZ1SMB Series Electrical Characteristics - For Bidirectional V @ I V I @ Breakdown Voltage C PP Device* Device (NRoWteM 6) VR (Note 8) C Typ. Marking RWM V @ I (V) (Note 7) @ I V I (Note 9) BR T T C PP Volts µA MIN NOM MAX mA Volts Amps pF SZ1SMB10CAT3G KXC 10 5.0 11.1 11.69 12.27 1.0 17.0 35.3 805 SZ1SMB11CAT3G KZC 11 5.0 12.2 12.84 13.5 1.0 18.2 33.0 740 SZ1SMB12CAT3G LEC 12 5.0 13.3 14.00 14.7 1.0 19.9 30.2 680 SZ1SMB13CAT3G LGC 13 5.0 14.4 15.16 15.9 1.0 21.5 27.9 630 SZ1SMB14CAT3G LKC 14 5.0 15.6 16.42 17.2 1.0 23.2 25.8 590 SZ1SMB15CAT3G LMC 15 5.0 16.7 17.58 18.5 1.0 24.4 24.0 555 SZ1SMB16CAT3G LPC 16 5.0 17.8 18.74 19.7 1.0 26.0 23.1 520 SZ1SMB17CAT3G LRC 17 5.0 18.9 19.90 20.9 1.0 27.6 21.7 490 SZ1SMB18CAT3G LTC 18 5.0 20.0 21.06 22.1 1.0 29.2 20.5 465 SZ1SMB20CAT3G LVC 20 5.0 22.2 23.37 24.5 1.0 32.4 18.5 425 SZ1SMB22CAT3G LXC 22 5.0 24.4 25.69 27.0 1.0 35.5 16.9 390 SZ1SMB24CAT3G LZC 24 5.0 26.7 28.11 29.5 1.0 38.9 15.4 366 SZ1SMB26CAT3G MEC 26 5.0 28.9 30.42 31.9 1.0 42.1 14.2 330 SZ1SMB28CAT3G MGC 28 5.0 31.1 32.74 34.4 1.0 45.4 13.2 310 SZ1SMB30CAT3G MKC 30 5.0 33.3 35.06 36.8 1.0 48.4 12.4 290 SZ1SMB33CAT3G MMC 33 5.0 36.7 38.63 40.6 1.0 53.3 11.3 265 SZ1SMB36CAT3G MPC 36 5.0 40.0 42.11 44.2 1.0 58.1 10.3 245 SZ1SMB40CAT3G MRC 40 5.0 44.4 46.74 49.1 1.0 64.5 9.3 220 SZ1SMB43CAT3G MTC 43 5.0 47.8 50.32 52.8 1.0 69.4 8.6 210 SZ1SMB45CAT3G MVC 45 5.0 50.0 52.63 55.3 1.0 72.2 8.3 200 SZ1SMB48CAT3G MXC 48 5.0 53.3 56.11 58.9 1.0 77.4 7.7 190 SZ1SMB51CAT3G MZC 51 5.0 56.7 59.69 62.7 1.0 82.4 7.3 175 SZ1SMB54CAT3G NEC 54 5.0 60.0 63.16 66.32 1.0 87.1 6.9 170 SZ1SMB58CAT3G NGC 58 5.0 64.4 67.79 71.18 1.0 93.6 6.4 155 SZ1SMB60CAT3G NKC 60 5.0 66.7 70.21 73.72 1.0 96.8 6.2 150 SZ1SMB64CAT3G NMC 64 5.0 71.1 74.84 78.58 1.0 103 5.8 145 SZ1SMB75CAT3G NRC 75 5.0 83.3 91.65 92.07 1.0 121 4.9 125 6. A transient suppressor is normally selected according to the working peak reverse voltage (V ), which should be equal to or RWM greater than the DC or continuous peak operating voltage level. 7. V measured at pulse test current I at an ambient temperature of 25°C. BR T 8. Surge current waveform per Figure 1 and derate per Figure 3 of the General Data − 600 Watt at the beginning of this group. 9. Bias Voltage = 0 V, F = 1 MHz, T = 25°C J © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/30/18

TVS Diodes Surface Mount > 600W > SZ1SMB Series Ratings and Characteristic Curves - For Unidirectional Figure 1. Pulse Rating Curve Figure 2. Pulse Waveform Figure 3 - Pulse Derating Curve Figure 4. Typical Junction Capacitance vs. Bias Voltage SZ1SMB5.0AT3G SZ1SMB10AT3G SZ1SMB48AT3G SZ1SMB170AT3G Figure 5. Typical Protection Circuit in in © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/30/18

TVS Diodes Surface Mount > 600W > SZ1SMB Series Ratings and Characteristic Curves - For Bidirectional Figure 6. Pulse Rating Curve Figure 7. Pulse Waveform 100 NONREPETITIVE PULSE WAVEFORM SHOWN IN FIGURE 2 10 1 0.1 0.1 s1 s1 0 s 100 s 1 ms 10 ms t Figure 8. Pulse Derating Curve Figure 9. Typical Junction Capacitance vs. Bias Voltage 1,000 1SSZM1SAM10BC1A0TA3TG3G TJ = 25ϒC F = 1 MHz S1ZS1MSAM1B81C8AATT33GG E (pF) 100 S1ZS1MSAM4B84C8AATT33GG C N A T ACI S1ZS1MSAM7B87C8AATT33GG P A C 10 C, 1 11 0 100 BIAS VOLTAGE (VOLTS) Figure 10. Typical Protection Circuit in in © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/30/18

TVS Diodes Surface Mount > 600W > SZ1SMB Series Dimensions Soldering Footrpint HE E 2.261 0.089 bD D 2.743 POLARITY INDICATOR 0.085 OPTIONAL AS NEEDED (SEE STYLES) 2.159 A 0.085 ( m m ) A1 Sacle 8:1 L c Inches Inches Millimeters Dim ORDERING INFORMATION Min Nom Max Min Nom Max A 0.077 0.091 0.097 1.95 2.30 2.47 Device** Package Shipping† A1 0.002 0.004 0.008 0.05 0.10 0.20 SMB 2,500 / b 0.077 0.080 0.087 1.96 2.03 2.20 SZ1SMBxxAT3G (Pb−Free) Tape & Reel c 0.006 0.09 0.012 0.15 0.23 0.31 SMB 2,500 / D 0.130 0.140 0.156 3.30 3.56 3.95 SZ1SMBxxCAT3G (Pb−Free) Tape & Reel E 0.160 0.170 0.181 4.06 4.32 4.60 H 0.205 0.214 0.220 5.21 5.44 5.60 E Flow/Wave Soldering (Solder Dipping) L 0.030 0.040 0.063 0.76 1.02 1.60 L1 0.020 REF 0.51 REF Peak Temperature : 260ºC Dipping Time : 10 seconds NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. D DIMENSION SHALL BE MEASURED WITHIN DIMENSION P. Physical Specifications Void-free, transfer-molded, Part Marking System Case thermosetting plastic Polarity Cathode indicated by polarity band Mounting Position Any Unidirectional Bidirectional All external surfaces are corrosion Finish resistant and leads are readily solderable Modified L−Bend providing more contact Leads area to bond pads Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at: www.littelfuse.com/disclaimer-electronics. © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/30/18